Light cover on a hubcap



FIG. 1 is a front perspective view of a light cover on a hubcap showing our new design;

FIG. 2 is left view thereof;

FIG. 3 is a right view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines included in the Figures illustrate portions of the article and form no part of the claimed design. 

CLAIM The ornamental design for a light cover on a hubcap, as shown and as described. 